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• javascript plugin - singleton pattern?

  - by Adam Kiss

  intro Hello, I'm trying to develop some plugin or/*and* object in javascript, which will control some properties over some object. It will also use jQuery, to ease development. idea This is in pseudocode to give you an idea, since I can't really describe it in english with the right words, it's impossible to go and use google to find out what I want to use (and learn). I will have plugin (maybe object?) with some variables and methods: plugin hideshow(startupconfig){ var c, //collection add: function(what){ c += what; }, do: function(){ c.show().hide().stop(); //example code } } and I will use it this way (or sort-of): var p = new Plugin(); p .add($('p#simple')) .add($('p#simple2')) .do(); note I'm not really looking for jQuery plugin tutorials - it's more like usage of singleton pattern in document in javascript, jQuery is mentione only because it will be used to modify dom and simplify selectors, jQuery plugin maybe just for that one little function add. I'm looking for something, that will sit on top of my document and call functions from itselft based on timer, or user actions, or whatever. problems I don't really know where to start with construction of this object/plugin I'm not really sure how to maintain one variable, which is collection of jQuery objects (something like $('#simple, #simple2');) I would maybe like to extedn jQuery with $.fn.addToPlugin to use chaining of objects, but that should be simple (really just each( p.add($(this)); )) I hope I make any sense, ideas, links or advices appreciated.

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• MVC best practice

  - by Patrick

  I'm new to MVC (i'm using codeigniter) and was wondering where I should put a "cut_description" function. My model retrieves a list of events including their description. If the description is too long, I would need to cut it after the first n words, and add a "read more" link, so the view doesn't get too cluttered. What would be the best practice? a) add the logic to cut after n words to the model; b) add the logic to the controller; c) add it to the view? I think C would be the easier (I have to loop through results anyway), but I'm not sure this would comply with MVC. What do you think?

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• How to count occurrence of an element in a List

  - by MM

  I have an ArrayList a collection class of java as follows. ArrayList<String>animals = new ArrayList<String>(); animals.add("bat"); animals.add("owl"); animals.add("bat"); animals.add("bat"); As you can see the animals ArrayList consists of 3 bat elements and one owl element. I was wondering if there is any API in collection framework that returns the number of bat occurrences or is there a way to determine number of occurrences. I found that google's collection multiset does have an api that returns total number of occurrences of an element. But that is compatible only with jdk1.5. Our product is currently in jdk 1.6. Hence cannot use it.

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• Post request with body_stream and parameters

  - by Damien MATHIEU

  Hello, I'm building some kind of proxy. When I call some url in a rack application, I forward that request to an other url. The request I forward is a POST with a file and some parameters. I want to add more parameters. But the file can be quite big. So I send it with Net::HTTP#body_stream instead of Net::HTTP#body. I get my request as a Rack::Request object and I create my Net::HTTP object with that. req = Net::HTTP::Post.new(request.path_info) req.body_stream = request.body req.content_type = request.content_type req.content_length = request.content_length http = Net::HTTP.new(@host, @port) res = http.request(req) I've tried several ways to add the proxy's parameters. But it seems nothing in Net::HTTP allows to add parameters to a body_stream request, only to a body one. Is there a simpler way to proxy a rack request like that ? Or a clean way to add my parameters to my request ?

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• Rollback in lucene

  - by Petrick Lim

  Is there a rollback in lucene? I'm saving & updating database repository & lucene repository simultaneously so that the lucene index & database are in sync.. ex. CustomerRepository.add(customer); SupplierRepository.add(supplier); CustomerLuceneRepository.add(customer); SupplierLuceneRepository.add(supplier); // If this here fails i cannot rollback the customer above DataContext.SubmitChanges();

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• Wondering about a way to conserve memory in C# using List<> with structs

  - by Michael Ryan

  I'm not even sure how I should phrase this question. I'm passing some CustomStruct objects as parameters to a class method, and storing them in a List. What I'm wondering is if it's possible and more efficient to add multiple references to a particular instance of a CustomStruct if a equivalent instance it found. This is a dummy/example struct: public struct CustomStruct { readonly int _x; readonly int _y; readonly int _w; readonly int _h; readonly Enum _e; } Using the below method, you can pass one, two, or three CustomStruct objects as parameters. In the final method (that takes three parameters), it may be the case that the 3rd and possibly the 2nd will have the same value as the first. List<CustomStruct> _list; public void AddBackground(CustomStruct normal) { AddBackground(normal, normal, normal); } public void AddBackground(CustomStruct normal, CustomStruct hover) { AddBackground(normal, hover, hover); } public void AddBackground(CustomStruct normal, CustomStruct hover, CustomStruct active) { _list = new List<CustomStruct>(3); _list.Add(normal); _list.Add(hover); _list.Add(active); } As the method stands now, I believe it will create new instances of CustomStruct objects, and then adds a reference of each to the List. It is my understanding that if I instead check for equality between normal and hover and (if equal) insert normal again in place of hover, when the method completes, hover will lose all references and eventually be garbage collected, whereas normal will have two references in the List. The same could be done for active. That would be better, right? The CustomStruct is a ValueType, and therefore one instance would remain on the Stack, and the three List references would just point to it. The overall List size is determined not by the object Type is contains, but by its Capacity. By eliminating the "duplicate" CustomStuct objects, you allow them to be cleaned up. When the CustomStruct objects are passed to these methods, new instances are created each time. When the structs are added to the List, is another copy made? For example, if i pass just one CustomStruct, AddBackground(normal) creates a copy of the original variable, and then passes it three times to Addbackground(normal, hover, active). In this method, three copies are made of the original copy. When the three local variables are added to the List using Add(), are additional copies created inside Add(), and does that defeat the purpose of any equality checks as previously mentioned? Am I missing anything here?

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• Exposing headers on iPhone static library

  - by leolobato

  Hello guys, I've followed this tutorial for setting up a static library with common classes from 3 projects we are working on. It's pretty simple, create a new static library project on xcode, add the code there, a change some headers role from project to public. The tutorial says I should add my library folder to the header search paths recursively. Is this the right way to go? I mean, on my library project, I have files separated in folders like Global/, InfoScreen/, Additions/. I was trying to setup one LOKit.h file on the root folder, and inside that file #import everything I need to expose. So on my host project I don't need to add the folder recursively to the header search path, and would just #import "LOKit.h". But I couldn't get this to work, the host project won't build complaining about all the classes I didn't add to LOKit.h, even though the library project builds. So, my question is, what is the right way of exposing header files when I setup a Cocoa Touch Static Library project on xCode?

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• adding user to windows make the administrator icon to disappear !

  - by user283322

  Hello I used the command "net user" to add a new admin user to windows like that: net user myuser11 myuser11 /add net localgroup Administrators myuser11 /add the problem that after restart windows I only see the icon of the "myuser" and the default windows "Administrator" login icon disappeared !! the "Administrator" files still exists and I can login as "Administrator" after ctrl+alt+del but I need of course to display the "Administrator" icon in welcome screen how I fix that ? I use windows xp sp3 thanks

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• WCF extensions without including the assembly version

  - by Marc Gravell

  As discussed here, I'm trying to add a WCF endpoint-extension; I've got it working, but I need to include the full assembly details: <extensions> <behaviorExtensions> <add name="protobuf" type="ProtoBuf.ServiceModel.ProtoBehaviorExtension, protobuf-net, Version=1.0.0.275, Culture=neutral, PublicKeyToken=257b51d87d2e4d67"/> </behaviorExtensions> </extensions> What I would like to do (to avoid issues when updating etc, especially for samples) is to include just the names: <add name="protobuf" type="ProtoBuf.ServiceModel.ProtoBehaviorExtension, protobuf-net"/> (which is what you might expect from standard assembly-naming conventions) However, if I do this, I get a big error: Parser Error Message: An error occurred creating the configuration section handler for system.serviceModel/behaviors: Extension element 'protobuf' cannot be added to this element. Verify that the extension is registered in the extension collection at system.serviceModel/extensions/behaviorExtensions. Is it possible (and if so: how) to add an extension without having to specify the assembly-version?

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• VSTO: Attach meta-data to a cell in Excel?

  - by Gustav

  Hi! I'm using VSTO to create an Excel Add-on. This add-on retrieves and display alot of data from a sql-server. This works great, but later on I plan to access some of the data inside excel and modify it in some ways. My problem is that I need a way of classify cells that I want to modify. Is there any way to add meta-data to a cell to know if it is a cell that should be modified? E.g. add a attribute to the cell, e.g. "editable_cell", and do something like Excel.FindCellsWithAttribute("editable_cell") to find the sought after cells? Thanks! /Gustav

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• Lightweight use of Enterprise Library TraceListeners

  - by gWiz

  Is it possible to use the Enterprise Library 4.1 TraceListeners without using the entire Enterprise Library Logging AB? I'd prefer to simply use .NET Diagnostics Tracing, but would like to setup a listener that sends emails on Error events. I figured I could use the Enterprise Library EmailTraceListener. However, my initial attempts to configure it have failed. Here's what I hoped would work: <system.diagnostics> <trace autoflush="false" /> <sources> <source name="SampleSource" switchValue="Verbose" > <listeners> <add name="textFileListener" /> <add name="emailListener" /> </listeners> </source> </sources> <sharedListeners> <add name="textFileListener" type="System.Diagnostics.TextWriterTraceListener" initializeData="..\trace.log" traceOutputOptions="DateTime"> <filter type="System.Diagnostics.EventTypeFilter" initializeData="Verbose" /> </add> <add name="emailListener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.EmailTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging" toAddress="[email protected]" fromAddress="[email protected]" smtpServer="mail.example.com" > <filter type="System.Diagnostics.EventTypeFilter" initializeData="Verbose" /> </add> </sharedListeners> </system.diagnostics> However I get [ArgumentException: The parameter 'address' cannot be an empty string. Parameter name: address] System.Net.Mail.MailAddress..ctor(String address, String displayName, Encoding displayNameEncoding) +1098157 System.Net.Mail.MailAddress..ctor(String address) +8 Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.EmailMessage.CreateMailMessage() +256 Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.EmailMessage.Send() +39 Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.EmailTraceListener.Write(String message) +96 System.Diagnostics.TraceListener.WriteHeader(String source, TraceEventType eventType, Int32 id) +184 System.Diagnostics.TraceListener.TraceEvent(TraceEventCache eventCache, String source, TraceEventType eventType, Int32 id, String format, Object[] args) +63 System.Diagnostics.TraceSource.TraceEvent(TraceEventType eventType, Int32 id, String format, Object[] args) +198 System.Diagnostics.TraceSource.TraceInformation(String message) +14 Which leads me to believe the .NET Tracing code does not care about the "non-standard" config attributes I've supplied for emailListener. I also tried adding the appropriate LAB configSection declaration and: <loggingConfiguration> <listeners> <add toAddress="[email protected]" fromAddress="[email protected]" smtpServer="mail.example.com" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.EmailTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging" name="emailListener" /> </listeners> </loggingConfiguration> This also results in the same exception. I figure it's possible to programmatically configure the EmailTraceListener, but I prefer this to be config-driven. I also understand I can implement my own derivative of TraceListener. So, is it possible to use the Ent Lib TraceListeners, without using the whole Ent Lib LAB, and configure them from the config file? Update: After examining the code, I have discovered it is not possible. The Ent Lib TraceListeners do not actually utilize the config attributes they specify in overriding TraceListener.GetSupportedAttributes(), despite the recommendations in the .NET TraceListener documentation. Bug filed.

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• Storage servers architectural solution for backup. What is the best way? (pics inside)

  - by Kirzilla

  Hello, What is the best architecture for storage servers array? Needs... a) easy way to add one more server to array b) we don't have single backup server c) we need to have one backup for each "web" part of each server Group #1 : is cross-server-backuping scheme; the main disadvantage that we can't add one more server, we should add 2 servers in one time. Group #2 : is a Group #1, but with three and more servers. It also have a disadvantage - to add one more server we should move existing backup to it. Any suggestions? Thank you. Thank you.

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• Can i override an abstract method written in a parent class, with a different name in a child class?

  - by Ranhiru

  abstract class SettingSaver { public abstract void add(string Name, string Value); public abstract void remove(string SettingName); } class XMLSettings : SettingSaver { public override void add(string Name, string Value) { throw new NotImplementedException(); } public override void remove(string SettingName) { throw new NotImplementedException(); } } Is there anyway that I can change the name of the add function in XMLSettings class to addSetting but make sure it overrides the add function in the SettingSaver? I know it should be definitely overridden in derived classes but just want to know whether I can use a different name :) Thanx in advance :D

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• Dependency Property ListBox

  - by developer

  Hi All, I want to use a dependency property, so that my label displays values selected in the listbox. This is just to more clearly understand the working of a dependency property. <Window x:Class="WpfApplication1.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:WPFToolkit="clr-namespace:Microsoft.Windows.Controls;assembly=WPFToolkit" xmlns:local="clr-namespace:WpfApplication1" x:Name="MyWindow" Height="200" Width="300" > <StackPanel> <ListBox x:Name="lbColor" Width="248" Height="56" ItemsSource="{Binding TestColor}"/> <StackPanel> <Label Content="{Binding Path=Test, ElementName=lbColor}" /> </StackPanel> </StackPanel> </Window> Code Behind, namespace WpfApplication1 { /// <summary> /// Interaction logic for Window1.xaml /// </summary> public partial class Window1 : Window { public ObservableCollection<string> TestColor { get; set; } public String Test { get { return (String)GetValue(TestProperty); } set { SetValue(TestProperty, value); } } // Using a DependencyProperty as the backing store for Title. This enables animation, styling, binding, etc... public static readonly DependencyProperty TestProperty = DependencyProperty.Register("Test", typeof(String), typeof(ListBox), new UIPropertyMetadata("Test1")); public Window1() { InitializeComponent(); TestColor = new ObservableCollection<string>(); DataContext = this; TestColor.Add("Red"); TestColor.Add("Orange"); TestColor.Add("Yellow"); TestColor.Add("Green"); TestColor.Add("Blue"); } } } Can anyone explain me how will I accompalish this using a dependency property. Somehow I am very confused with the Dependency Property concept, and I just wanted to see a working example for that.

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• Proxy setings for web service(client or service hosted server)

  - by tc

  I am trying to add the a web service through Web reference, i am able to find the service while trying to add it, not able to add, the option is disabled. I suspect this is because of the proxy settings, What do you suggest? While mentioning he proxy in the the client application which proxy should i mention,the proxy of my machine in which client application is hosted which is consuming the web service or the proxy of the machine in which the web service is hosted?

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• How to represent a Board Panel in Java for a game ?

  - by FILIaS

  I wanna fix a 2D board for a game. I've already fixed other panels for the Gui and everything goes well. But the panel for the board cant be printed on the window. I'm a bit confused about it as i think i've followed the same ideas as for the others panels i need. Here's what i've done: EDIT:*EDIT* what i'm trying to do is fix a board panel for the game according to the dimensions of the it,hold every square in an array in order to use it after wherever it;s needed. I draw each little square of it with the method draw and put it back to the panel. So, each square on the board is a panel. This is the idea. But as u can see. There are troubles/errors on it. EDIT: code updated. just found a part of the problem. i thought first that i had set background to squared, but i didnt. with this one it appears on the panel a wide black "column". Unfortunately,still none squares. :( One More EDIT: Also,i realized that draw method is never called. when i put the draw method in the following method i can see the squares but they remain small. I redefine them with setSize but still no change. How can I use paint method to edit the panels properly???? As it is now it can't. Even it can't return an object(eg panel) as it's polymorphic void! /** *Method used to construct the square in the area of the *gui's grid. In this stage a GUISquare array is being constructed, * used in the whole game as *a mean of changing a square graphical state. *@param squares is the squares array from whom the gui grid will be *constructed. *@see getSquare about the correspondance beetween a squareModel and * a GUISquare. */ private void initBoardPanel(SquareModel[][] squares){ BoardPanel.setLayout(new GridLayout(height ,width )); //set layout SquareRenderer[][] Squares; JPanel[][] grid; Squares=new GUISquare[height][width()]; grid=new JPanel[height()][width()]; for (int i=0; i<height(); i++){ for (int j=0; j<width() ; j++){ SquareRenderer kou=new SquareRenderer(i,j); kou.setSquare(myGame.getSquares()[i][j]); //NOTE: THE FOLLOWING DRAW METHOD CANT BE CALLED!!!? if (myGame.getSquares()[i][j] instanceof SimpleSq ){ kou .paintPanel(i,j,"");} else if (myGame.getSquares()[i][j] instanceof ActionSq ) { kou .paintPanel(i,j); } //JUST BECAUSE DRAW CANT BE CALLED I PUT ITS CODE HERE: //JUST TO CHECK: JPanel panel = new JPanel(); panel.setLayout(new BorderLayout()); JLabel label1 = new JLabel("Move To "+myGame.getSquares()[i][j].getGoTo()); JLabel label2 = new JLabel(""+myGame.getSquares()[i][j].getSquare()); panel.setBackground(Color.ORANGE); panel.add(label2, BorderLayout.NORTH); panel.add(label1, BorderLayout.CENTER); panel.setSize(250,250); ///////// <--until here ---paint method<--- kou.add(panel); kou.setVisible(true); kou.setBackground(Color.BLACK); Squares[i][j]= kou; BoardPanel.add(kou); BoardPanel.setVisible(true); BoardPanel.setBackground(Color.WHITE); } } this.add(BoardPanel,BorderLayout.WEST); // this.pack(); //sets appropriate size for frame this.setVisible(true); //makes frame visible } IMPLEMENTED BY SQUARERENDERER: /** * Transformer for Snake/Ladder * <br>This method is used to display a square on the screen. */ public void paintPanel(int i,int j) { JPanel panel = new JPanel(); panel.setLayout(new BorderLayout()); JLabel label1 = new JLabel("Move To"+myGame.getSquares()[i][j].getGoTo()); JLabel label2 = new JLabel(""+myGame.getSquares()[i][j].getSquare()); JSeparator CellSeparator = new JSeparator(orientation); panel.add(CellSeparator); panel.setForeground(Color.ORANGE); panel.add(label2, BorderLayout.NORTH); panel.add(label1, BorderLayout.CENTER); }

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• Problem with include guard

  - by isurulucky

  When I add an include guard to my header file for a Visual C++ project, it gives me the following warning and error: warning C4603: '_MAPTEST_H' : macro is not defined or definition is different after precompiled header use Add macro to precompiled header instead of defining here .\MapTest.cpp(6) : use of precompiled header** // the precompiled header stdafx.h is included in this line .\MapTest.cpp(186) : fatal error C1020: unexpected #endif but when I add the precompiled header before the include guard, no warning or error is emitted. What is the reason for this?

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• Javascript Rich Display Component/Methodology

  - by Laramie

  quick back story-- I am working on ASP.Net based template editor that lets authors create text templates using Javascript inserted placeholder tags that will be filled in with dynamic text when the templates are used to display the final results. For example the author might create a template like The word [%12#add] was generated dynamically. The application would eventually replace the tag with a dynamic word down the road (though it's not specifically relevant to this post) The word foo was generated dynmamically. Depending on the circumstances, the template may be created in a text input, textarea or a modified version of the Ajax Control Toolkit HTML Editor. There might be 40 or more of these editable elements on the page, so using lots of stripped down or modified HTML editors would probably bog the page down too much. The problem is that the tags such as [%12#add] are displayed inline with the user text and the result is confusing and aesthetically gross. The goal is parse the contens of the source element and when a tags such as [%12#add] are encountered, display something prettier and less cryptic to the user such as a stylable element or image wherever tags such as [%12#add] occur. The application still needs the template text with the tags on postback. So the user might see The word tag placeholder was generated dynamically. but the original template would still be the value of the text input box The word [%12#add] was generated dynamically. It seems HTML editors like the ACT version and FckEditor accomplish this by rendering their output in an IFrame, but rather than kill myself trying to roll a lighter specialized version myself, I thought I'd ask if anyone knows of an existing free component or approach that has already tackled this. With good reason, I don't think S.O. allows HTML formatting, but the bold "tag placeholder" above would ideally be something like tag placeholder.

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• Want to set 'src' of script to my IP-Won't load in Safari or Chrome. Relative link asp.netmvc

  - by Ozaki

  I have a script that links to the server I am hosting (IP can change) usually I would just use for links: var url ='http://' + window.location.hostname + 'end of url'; But in this case it isnt appearing to be so easy. I have tried: (1) $('#scriptid').attr('src', url); as well as: (2) var script = document.createElement( 'script' ); script.type = 'text/javascript'; script.src = url; $("#insert").append( script ); Now case (2) works loads the script runs the script. But when at the end of my script it hits the 'write data' it decides to replace the entire page with just the data. Any idea on how I can do this? Note: I am using plain html not ASP. With ASP backend that is just the way it has to be. Ok it now is <script src="myscript.js"></script> C# router.AddAsyncRoute("myscript.js"...... It workes in IE & FF. But I get blank pages in Chrome & Safari. I am using document.write to write a script onto my page. Any ideas why Chrome & Safari don't like this? I am so far assuming that in Crhome & Safari it takes longer to run the script therefore launching the document.write after the DOM has loaded therefore replacing the page with a blank one. edit the script im trying to run is a modification of: d = new dTree('d'); d.add(0,-1,'My example tree'); d.add(1,0,'Node 1','default.html'); d.add(2,0,'Node 2','default.html'); d.add(3,1,'Node 1.1','default.html'); d.add(4,0,'Node 3','default.html'); d.add(5,3,'Node 1.1.1','default.html') document.write(d); Any ideas how I can get around this? I am not to sure how to implement an appenChild in this case as the script is changing constantly with live data. So every refresh it will generally have changed some...

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• passing groups of properties from 1 class to another

  - by insanepaul

  I have a group of 13 properties in a class. I created a struct for these properties and passed it to another class. I need to add another 10 groups of these 13 properties. So thats 130 properties in total. What do I do? I could add all 130 properties to the struct. Will this affect performance and readability I could create a list of structs but don't know how to access an item eg. to add to the list: listRowItems.Add(new RowItems(){a=1, b=1, c=1, d=1...}); listRowItems.Add(new RowItems(){a=2, b=2, c=2, d=2...}); How do I access the second group item b? is it Could I use just a dictionary with 130 items Should I use a list of dictionaries (again I don't know how to access a particular item) Should I pass in a class of 130 properties Just for your interest the properties are css parameters used for a composite control. The control displays 13 elements in each row and there are 10 rows and each row is customisable.

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• Over ride default look and feel Java

  - by Aizaz

  I want to over ride java look and feel. I just want to show the buttons differently. I want all the features of Windows Look and Feel but only buttons differently. I hope you get my point. Color color = new Color(220, 220, 220, 200); UIManager.put("OptionPane.background", color); UIManager.put("Panel.background", color); UIManager.put("Button.foreground", new Color(255, 255, 255, 255)); List<Object> gradients = new ArrayList<Object>(5); gradients.add(0.00f); gradients.add(0.00f); gradients.add(new Color(0xC1C1C1)); gradients.add(new Color(0xFFFFFF)); gradients.add(new Color(0x5C5D5C)); UIManager.put("Button.gradient", gradients); UIManager.put("Button.highlight",Color.RED); UIManager.setLookAndFeel(com.sun.java.swing.plaf.windows.WindowsLookAndFeel);

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• IOS where to put the configuration of facebook sdk

  - by Carol Smith

  I am trying to integrated my IOS 7 application with Facebook SDK I following this official tutorial https://developers.facebook.com/docs/ios/getting-started which states Configure the .plist Follow these three steps: Create a key called FacebookAppID with a string value, and add the app ID there. Create a key called FacebookDisplayName with a string value, and add the Display Name you configured in the App Dashboard. Create an array key called URL types with a single array sub-item called URL Schemes. Give this a single item with your app ID prefixed with fb. This is used to ensure the application will receive the callback URL of the web-based OAuth flow. The finished .plist should look something like this: My question is where to put these values? They already put this image, maybe it helps you to answer me Edit The problem that I don't have any plist file in my framework in xcode and I can't add a new one because if i did, I would have to add all the variables that you see in the image but the tutorial just stated about some of them

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• Please critique this method

  - by Jakob

  Hi I've been looking around the net for some tab button close functionality, but all those solutions had some complicated eventhandler, and i wanted to try and keep it simple, but I might have broken good code ethics doing so, so please review this method and tell me what is wrong. public void AddCloseItem(string header, object content){ //Create tabitem with header and content StackPanel headerPanel = new StackPanel() { Orientation = Orientation.Horizontal, Height = 14}; headerPanel.Children.Add(new TextBlock() { Text = header }); Button closeBtn = new Button() { Content = new Image() { Source = new BitmapImage(new Uri("images/cross.png", UriKind.Relative)) }, Margin = new Thickness() { Left = 10 } }; headerPanel.Children.Add(closeBtn); TabItem newTabItem = new TabItem() { Header = headerPanel, Content = content }; //Add close button functionality closeBtn.Tag = newTabItem; closeBtn.Click += new RoutedEventHandler(closeBtn_Click); //Add item to list this.Add(newTabItem); } void closeBtn_Click(object sender, RoutedEventArgs e) { this.Remove((TabItem)((Button)sender).Tag); } So what I'm doing is storing the tabitem in the btn.Tag property, and then when the button is clicked i just remove the tabitem from my observablecollection, and the UI is updated appropriately. Am I using too much memory saving the tabitem to the Tag property?

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• ASP.NET MVC Posted date field comes in as 1/1/0001

  - by engil

  Just started working with .NET and MVC(1). I'm having a problem wherein in my add action the entered date for some reason ends up as 1/1/0001 instead of what is entered thus causing a date overflow. In my model, this field ("Added") is is of type datetime and does not allow nulls. In my controller I have: public ActionResult Add() { Instance instance = new Instance() { Added = DateTime.Now, Active = true }; return View(instance); } [AcceptVerbs(HttpVerbs.Post)] public ActionResult Add(Instance instance) { if (ModelState.IsValid) { try { System.Diagnostics.Trace.Write("test"); instanceRepository.Add(instance); instanceRepository.Save(); return RedirectToAction("Details", new { id = instance.InstanceID }); } catch { ModelState.AddRuleViolations(instance.GetRuleViolations()); } } return View(instance); } And in my view I have: <div class="editor-label"> <%= Html.LabelFor(model => model.Added) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Added,String.Format("{0:g}",Model.Added))%> <%= Html.ValidationMessageFor(model => model.Added) %> When I first go to Instances/Add the default value is set correctly, however as soon as I submit the date turns into 1/1/0001 (from my understanding this indicates that it was either null or in an unrecognizable format) When I debug and palce a watch on Request.Form I see the date coming in encoded ie Request.Form {Added=4%2f9%2f2010+8%3a24%3a39+AM} - is this an issue? I know its probably not enough information to make a conlusive determination on why this is failing, but if someone could provide some good debugging tips on how to determine where the submitted date is getting munged I'd really appreciate it.

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• Pass the values from ListView control to text boxes in c#

  - by Kumu

  private void deleteDisplayGamesButton_Click(object sender, EventArgs e) { //Game game = new Game(homeTeamComboBox.Text, int.Parse(homeScoreUpDown.Value.ToString()), awayTeamComboBox.Text, int.Parse(awayScoreUpDown.Value.ToString())); deleteDisplayGamesListView.Items.Clear(); deleteDisplayGamesListView.View = View.Details; foreach (Game currentgame in footballLeagueDatabase.games) { ListViewItem row = new ListViewItem(); row.SubItems.Add(currentgame.HomeTeam.ToString()); row.SubItems.Add(currentgame.HomeScore.ToString()); row.SubItems.Add(currentgame.AwayTeam.ToString()); row.SubItems.Add(currentgame.AwayScore.ToString()); deleteDisplayGamesListView.Items.Add(row); } } I need to pass the values from above ListView control to following text boxes when I use the deleteDisplayGamesListView_SelectedIndexChanged method. private void deleteDisplayGamesListView_SelectedIndexChanged(object sender, EventArgs e) { deleteModifyHomeTeamTxt.Text = ""; deleteModifyHomeScoreUpDown.Text = ""; deleteModifyAwayTeamTxt.Text = ""; deleteModifyAwayScoreUpDown.Text = ""; foreach (Game currentgame in footballLeagueDatabase.games); { ?----------------------------- } } Futhermore I need to clear this data from the ListView Control. If you know how to do this please let me know.

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